Stack of Mahjong vs Clock Challenge
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Stack of Mahjong
A free matching game where players find and connect identical mahjong tiles to clear the board. Offers various levels, board rotation, zoom, hints, and automatic shuffling for engaging gameplay.
- Identical tile matching
- Board rotation and zoom
- Hint and shuffle options
- Various levels
- Simple and attractive rules
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Stack of Mahjong is a free matching game.It will be one of the most popular games in the world because of simple and attractive rules. The goal of the game is searching for two identical mahjong tiles and matching them. After removing all of tile pieces,the mission will be finish. Stack of Mahjong is the most ideal game for you in your leisure time. Features: -Various different levels -The game is easy and the levels are novel. -Players can rotate, zoom in and out the board. -There are hint and automatic shuffle.
Clock Challenge
A minimalist game where players aim to stop a timer at precisely 10.000 seconds. With only one attempt per day, players compete for a spot on the leaderboard and build daily streaks. The game emphasizes precision and fairness for all players.
- One daily attempt
- Stop timer at 10.000 seconds
- Daily leaderboard
- Build streaks
- Server-checked times
- Cross-device sync
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Stop the timer at exactly 10.000 seconds. That's it. That's the game. You get ONE attempt per day. One press, one score. Land on the board and your name goes up in lights. Miss it and the clock is locked until tomorrow. PLAY IN ONE TAP No sign-up wall. Open the app, hit START, hit STOP. Claim your player name after your first shot to put your time on the leaderboard. ONE SHOT A DAY No retries. No grinding. Your daily press is your score, so make it count. YOUR NAME IN LIGHTS Today's board shows the exact time everyone stopped at. The Month and Year boards rank average miss over rolling 30 and 365 days, so consistency wins the long game. Streak board tracks who shows up every day. BUILD YOUR STREAK Play every day to grow your streak. Miss a day and it's gone. SIMPLE. BRUTAL. FAIR. Same clock, same target, same single chance for everyone. Millisecond precision. Server-checked times, so no cheaters on this board. Link your email once to keep your name and streak on every device. Free to play. No ads. Fun for all ages. Good luck... and NO BLINKING.
Screenshots
Verdict
The clearest difference is ads: Clock Challenge at none against Stack of Mahjong's shown. Clock Challenge also leads on update cadence (fortnightly vs every 49 months) and monetization model (free vs ad-supported). Stack of Mahjong's advantage is iOS requirement (12.0 vs 16.4). On price, rating, ratings volume and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Stack of Mahjong against 5.0 for Clock Challenge. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Stack of Mahjong ships an update every 49 months, Clock Challenge fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Stack of Mahjong | Clock Challenge |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 49 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 115 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | mei lien lin | Travis Moher |
Customer experience
Stack of Mahjong
Clock Challenge
In-app purchases
Stack of Mahjong
No in-app purchases
Clock Challenge
No in-app purchases
Questions
Is Stack of Mahjong free?
Is Clock Challenge free?
Which has better reviews, Stack of Mahjong or Clock Challenge?
Do Stack of Mahjong or Clock Challenge have ads?
Which is updated more often, Stack of Mahjong or Clock Challenge?
Other comparisons
